I would very much advise you to rid yourself of that way of thinking. Slow progression and a light start are the hallmarks of 531. Try to see the big picture! Long-term progress is always better than short-term progress. In the end, you will get there, whether or not you might have been off by 10% with your starting TMs won't matter at all in just a few cycles.
I'm in cycle 8 now after 7 1/2 months and I have yet to run into any sort of problems. What once seemed like unattainable weight now lies below my training maxes. I still consistently hit around 10 Reps (beltless) on 5+ days, 7-10 Reps on 3+ days, and at least 5 reps on 1+ days. So in that regard nothing has changed since week one.
Anyway, take home message: think long term (years!), don't rush, and enjoy the ride!